Search results
Results from the WOW.Com Content Network
Two-stroke engines which use crankcase compression do not require a crankcase ventilation system, since all of the gases within the crankcase are then fed into the combustion chamber. Many small four-stroke engines such as lawn mower engines and electricity generators simply use a draught tube connected to the intake system.
A crank sensor (CKP) [1] [2] [3] is an electronic device used in an internal combustion engine, both petrol and diesel, to monitor the position or rotational speed of the crankshaft. This information is used by engine management systems to control the fuel injection or the ignition system timing and other engine parameters.
The mower is a variation of the petrol-powered rotary push lawn mower, but uses a fan above the mower's spinning blades to allow the mower's body to hover over the lawn. The mower is claimed to be more manoeuvrable and easier to push than wheeled petrol mowers, while delivering similar results.
It is possible for a lawn mower to damage the underlying soil, the roots of the grass, and the mower itself if the blades cut through the grass and collide with the underlying ground. Therefore, it is important to adjust mower height properly and choose the right tires for a lawn mower to prevent any marking or digging.
Crankshaft, pistons and connecting rods for a typical internal combustion engine Marine engine crankshafts from 1942. The crankshaft is located within the engine block and held in place via main bearings which allow the crankshaft to rotate within the block. [3] The up-down motion of each piston is transferred to the crankshaft via connecting ...
Every walk-behind mower sold in the US since 1982 has a dead man's switch called an "operator-presence control", which by law must stop the blades within three seconds after the user releases the controls. [9] Attached across the handle is a mechanical lever connected by a flexible cable to the kill switch on the engine.
Discover the latest breaking news in the U.S. and around the world — politics, weather, entertainment, lifestyle, finance, sports and much more.
An overhead valve engine, abbreviated (OHV) and sometimes called a pushrod engine, is a piston engine whose valves are located in the cylinder head above the combustion chamber. This contrasts with flathead (or "sidevalve") engines , where the valves were located below the combustion chamber in the engine block .